adv7305a Analog Devices, Inc., adv7305a Datasheet - Page 63

• Manufacturer Part Number: adv7305a
• Description: Multiformat Sd, Progressive Scan/hdtv Video Encoder With Six Nsv 14-bit Dacs
• Manufacturer: Analog Devices, Inc.

Mode 2: Master Option
HSYNC, VSYNC, BLANK
(Timing Register 0 TR0 = X X X X X 1 0 1)
In this mode, the ADV7304A/ADV7305A can generate hori-
zontal and vertical SYNC signals. A coincident low transition of
both HSYNC and VSYNC inputs indicates the start of an odd
REV. A
BLANK
HSYNC
VSYNC
PIXEL
DATA
BLANK
HSYNC
VSYNC
PIXEL
DATA
Figure 103. SD Timing Mode 2 Even to Odd Field Transition, Master/Slave
Figure 104. SD Timing Mode 2 Odd to Even Field Transition, Master/Slave
NTSC = 16
PAL = 12
NTSC = 16
PAL = 12
CLOCK/2
CLOCK/2
CLOCK/2
CLOCK/2
NTSC = 122
PAL = 132
CLOCK/2
CLOCK/2
–63–
NTSC = 122
PAL = 132
NTSC = 858
field. A VSYNC low transition when HSYNC is high indicates
the start of an even field. The BLANK signal is optional. When
the BLANK input is disabled, the ADV7304A/ADV7305A
automatically blanks all normally blank lines as per CCIR-624.
HSYNC is output on the S_HSYNC pin, BLANK on the
S_BLANK pin, and FIELD on the S_VSYNC pin.
PAL = 864
Cb
CLOCK/2
CLOCK/2
CLOCK/2
CLOCK/2
Y
Cr
Y
ADV7304A/ADV7305A
Cb
Cb
Y
Cr
Y